ukphy.c revision 1.39
1 /* $NetBSD: ukphy.c,v 1.39 2010/02/24 22:37:59 dyoung Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center, and by Frank van der Linden. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1997 Manuel Bouyer. All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 46 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 47 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 48 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 49 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 51 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 52 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 53 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 54 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 55 */ 56 57 /* 58 * driver for generic unknown PHYs 59 */ 60 61 #include <sys/cdefs.h> 62 __KERNEL_RCSID(0, "$NetBSD: ukphy.c,v 1.39 2010/02/24 22:37:59 dyoung Exp $"); 63 64 #include "opt_mii.h" 65 66 #include <sys/param.h> 67 #include <sys/systm.h> 68 #include <sys/kernel.h> 69 #include <sys/device.h> 70 #include <sys/socket.h> 71 #include <sys/errno.h> 72 73 #include <net/if.h> 74 #include <net/if_media.h> 75 76 #include <dev/mii/mii.h> 77 #include <dev/mii/miivar.h> 78 79 #ifdef MIIVERBOSE 80 struct mii_knowndev { 81 int oui; 82 int model; 83 const char *descr; 84 }; 85 #include <dev/mii/miidevs.h> 86 #include <dev/mii/miidevs_data.h> 87 #endif 88 89 static int ukphymatch(device_t, cfdata_t, void *); 90 static void ukphyattach(device_t, device_t, void *); 91 92 CFATTACH_DECL3_NEW(ukphy, sizeof(struct mii_softc), 93 ukphymatch, ukphyattach, mii_phy_detach, mii_phy_activate, NULL, NULL, 94 DVF_DETACH_SHUTDOWN); 95 96 static int ukphy_service(struct mii_softc *, struct mii_data *, int); 97 98 static const struct mii_phy_funcs ukphy_funcs = { 99 ukphy_service, ukphy_status, mii_phy_reset, 100 }; 101 102 static int 103 ukphymatch(device_t parent, cfdata_t match, void *aux) 104 { 105 106 /* 107 * We know something is here, so always match at a low priority. 108 */ 109 return (1); 110 } 111 112 static void 113 ukphyattach(device_t parent, device_t self, void *aux) 114 { 115 struct mii_softc *sc = device_private(self); 116 struct mii_attach_args *ma = aux; 117 struct mii_data *mii = ma->mii_data; 118 int oui = MII_OUI(ma->mii_id1, ma->mii_id2); 119 int model = MII_MODEL(ma->mii_id2); 120 int rev = MII_REV(ma->mii_id2); 121 #ifdef MIIVERBOSE 122 int i; 123 #endif 124 125 #ifdef MIIVERBOSE 126 for (i = 0; mii_knowndevs[i].descr != NULL; i++) 127 if (mii_knowndevs[i].oui == oui && 128 mii_knowndevs[i].model == model) 129 break; 130 if (mii_knowndevs[i].descr != NULL) 131 aprint_normal(": %s (OUI 0x%06x, model 0x%04x), rev. %d\n", 132 mii_knowndevs[i].descr, 133 oui, model, rev); 134 else 135 #endif 136 aprint_normal(": OUI 0x%06x, model 0x%04x, rev. %d\n", 137 oui, model, rev); 138 139 sc->mii_dev = self; 140 sc->mii_inst = mii->mii_instance; 141 sc->mii_phy = ma->mii_phyno; 142 sc->mii_funcs = &ukphy_funcs; 143 sc->mii_pdata = mii; 144 sc->mii_flags = ma->mii_flags; 145 sc->mii_anegticks = MII_ANEGTICKS; 146 147 /* 148 * Don't do loopback on unknown PHYs. It might confuse some of them. 149 */ 150 sc->mii_flags |= MIIF_NOLOOP; 151 152 PHY_RESET(sc); 153 154 sc->mii_capabilities = 155 PHY_READ(sc, MII_BMSR) & ma->mii_capmask; 156 if (sc->mii_capabilities & BMSR_EXTSTAT) 157 sc->mii_extcapabilities = PHY_READ(sc, MII_EXTSR); 158 aprint_normal_dev(self, ""); 159 if ((sc->mii_capabilities & BMSR_MEDIAMASK) == 0 && 160 (sc->mii_extcapabilities & EXTSR_MEDIAMASK) == 0) 161 aprint_error("no media present"); 162 else 163 mii_phy_add_media(sc); 164 aprint_normal("\n"); 165 } 166 167 static int 168 ukphy_service(struct mii_softc *sc, struct mii_data *mii, int cmd) 169 { 170 struct ifmedia_entry *ife = mii->mii_media.ifm_cur; 171 int reg; 172 173 switch (cmd) { 174 case MII_POLLSTAT: 175 /* 176 * If we're not polling our PHY instance, just return. 177 */ 178 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 179 return (0); 180 break; 181 182 case MII_MEDIACHG: 183 /* 184 * If the media indicates a different PHY instance, 185 * isolate ourselves. 186 */ 187 if (IFM_INST(ife->ifm_media) != sc->mii_inst) { 188 reg = PHY_READ(sc, MII_BMCR); 189 PHY_WRITE(sc, MII_BMCR, reg | BMCR_ISO); 190 return (0); 191 } 192 193 /* 194 * If the interface is not up, don't do anything. 195 */ 196 if ((mii->mii_ifp->if_flags & IFF_UP) == 0) 197 break; 198 199 mii_phy_setmedia(sc); 200 break; 201 202 case MII_TICK: 203 /* 204 * If we're not currently selected, just return. 205 */ 206 if (IFM_INST(ife->ifm_media) != sc->mii_inst) 207 return (0); 208 209 /* 210 * Only used for autonegotiation. 211 */ 212 if (IFM_SUBTYPE(ife->ifm_media) != IFM_AUTO) 213 return (0); 214 215 if (mii_phy_tick(sc) == EJUSTRETURN) 216 return (0); 217 break; 218 219 case MII_DOWN: 220 mii_phy_down(sc); 221 return (0); 222 } 223 224 /* Update the media status. */ 225 mii_phy_status(sc); 226 227 /* Callback if something changed. */ 228 mii_phy_update(sc, cmd); 229 return (0); 230 } 231
Indexes created Tue Sep 30 11:09:46 GMT 2025